// Copyright 2019-2024 Xu Ruibo (hustxurb@163.com) and Contributors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package resp

import "bytes"

const (
	TagBeg = '{'
	TagEnd = '}'
)

func ExtractHashTag(key string) []byte {
	keybyte := []byte(key)
	if beg := bytes.IndexByte(keybyte, TagBeg); beg >= 0 {
		if end := bytes.IndexByte(keybyte[beg+1:], TagEnd); end >= 0 {
			keybyte = keybyte[beg+1 : beg+1+end]
		}
	}
	return keybyte
}
